Do the Evolution

2. Darwin's complete work on evolution: On the _____ of Species.
10. The name of the ship Darwin travelled on during his 5 year voyage.
12. Preserved remains of ancient organisms.
15. A term referring to the variety of living things.
17. Type of structures inherited from ancestors, that have lost much of their original function.
19. The process by which evolution occurs (2 words).
21. The type of selection used by breeders to select useful traits to pass on to the next generation.
22. The principle that states all species are descended from ancient common ancestors (2 words).
23. Darwin's first name.
24. The process of change over time.
25. Natural selection is also known as survival of the _____.
26. James _____ and Charles _____ concluded the Earth was extremely old (2 names).

1. Structures that are similar, inherited from a common ancestor.
3. The chain of islands instrumental in shaping Darwin's theory.
4. His work influenced Darwin's idea on the struggle for existence.
5. The term for a well supported, testable explanation.
6. The term for structures with a similar function, but not structure.
7. When organisms disappear from the Earth.
8. Molecular Biology uses similarities in the _____ _____ (2 words) as evidence to show organisms evolved from common ancestors.
9. The study of where organisms live now, and where they and their ancestors lived in the past.
11. How well an organism can survive and reproduce in its environment.
13. Displayed different shaped beaks depending on their island of origin.
14. His similar ideas on evolution propelled Darwin to publish his theory.
16. A characteristic that helps an organism survive.
18. Animals with different shaped shells depending on the island they were from.
20. He suggested organisms could change during their lifetimes by selectively using parts of their bodies.